Base Unit and Desktop Cooling Fan

ABSTRACT

The present invention discloses a base unit and a desktop cooling fan having the base unit, wherein the base unit comprises a base for detachably carrying a front panel unit, and/or a cooling unit, and/or an air supply unit mounting part, and/or a cover unit, and/or a refrigerant unit, and the base is formed with a lower liquid storage tank structure which can be closed. This freely disassembled and assembled structure provides flexible and convenient use performance. Meanwhile, the cooling device provided also effectively overcomes the problems of easy discoloration, aging, high noise, easy overflow of a refrigerant medium in use of the wet curtain of the existing apparatus.

TECHNICAL FIELD

The present invention belongs to the technical field of domestic electrical appliances for cooling, and in particular to a small base unit and a desktop cooling fan which are applied to the field of home life or office work comprising a desktop or a table top.

BACKGROUND

For existing desktop cooling fans, the air channel system generally uses a small axial flow fan of a computer cooling fan, with small air volume and high noise. The refrigeration system generally uses self-absorbent wet curtain paper, which is poor in cooling effect and is not durable. After a period of use, the paper will turn yellow by oxidation, and cannot be washed. The design of the whole machine cannot meet the needs of customers. The cooling effect is poor, the air volume is small, the air speed is small, the air supply distance is short, and the noise is high. The refrigerant medium in the open water channel region is easy to overflow during transportation or inclination.

SUMMARY

In order to solve the above problems, an object of the present invention is to provide a base unit and a desktop cooling fan with a modular design.

The base unit disclosed in the present invention comprises a base for detachably carrying a front panel unit, and/or a cooling unit, and/or an air supply unit, and/or a cover unit, and/or a refrigerant unit,

wherein the base comprises:

a front panel unit mounting part, which is formed on a front part of the base, and/or

a cooling unit mounting part, which is formed on an upper part of the base (the upper part here refers to the part of the base which comprises the upper surface or the base which is located near the upper surface as a whole, the same applies hereinafter) and is adjacent to the air supply unit mounting part, and/or

an air supply unit mounting part, which is formed on an upper part of the base and is adjacent to the cooling unit mounting part, and/or

a cover unit mounting part, which is formed on an edge of the base, and/or

a refrigerant unit mounting part, which is formed on an upper part of the base;

wherein each of the front panel unit mounting part, the cooling unit mounting part, the air supply unit mounting part, the cover unit mounting part, and the refrigerant unit mounting part comprises a connecting part, and the connecting part comprises at least a snap-fitting part (such as a bayonet, a tenon-and-mortise structure, a push-pull groove, and other cooperating structures) which is snap-fit by a protruding structure or a recessed structure that cooperates with each other or a screw-threaded part (such as a screw/thread hole connection structure, a screw/nut/through hole, and other cooperating connection structures) in which screwed connectors are connected to each other. Preferably, the snap-fitting part comprises a neck configured to be snap-fit with the protruding structure on the front panel unit or a flange configured to be snap-fit with the neck structure on the front panel unit.

According to an improvement of the base unit disclosed in the present invention, a neck comprises an open groove structure (that is, a structure that is not closed on one side and functions as snap fit as a whole, such as

type) formed at a position deviating from the edge of the base or a stepped groove structure (that is, a structure in which one side that is not closed is stepped and functions as snap fit as a whole, such as

type).

According to an improvement of the base unit disclosed in the present invention, the front panel unit mounting part is formed at an edge part of a front part of the base.

According to an improvement of the base unit disclosed in the present invention, the snap-fitting part comprises a neck recessed toward the inside of the base or a flange protruding toward the outside of the base, and the neck or flange is used to be correspondingly snap-fit with the front panel unit, the cooling unit, the air supply unit, the cover unit, and the refrigerant unit.

The base unit disclosed in the present invention comprises a base for detachably carrying a front panel unit, and/or a cooling unit, and/or an air supply unit, and/or a cover unit, and/or a refrigerant unit, and a partition structure for separating the upper part of the base into a liquid channel region and an air channel region,

wherein the partition structure is formed on the upper part of the base and protrudes outward from the base to the upper part thereof, and a tight liquid-proof structure is formed at the connection between the partition structure and the base; the upper part of the liquid channel region is also provided with a liquid storage box cover in a matching way, and the liquid storage box cover at least partially closes the liquid channel region to form a lower liquid storage box; that is to say, through the cooperation among the bottom of the base, the partition structure and the liquid storage box cover, the lower liquid storage box structure can be sealed at least in part or all of the travel of the liquid channel region, so that the refrigerant medium can be safely defined in the lower liquid storage box during transportation or in the risk of overflow (for example, the refrigerant medium in the liquid channel region may overflow due to inclination, etc.).

The base comprises:

a front panel unit mounting part, which is formed on a front part of the base, wherein the snap-fitting part comprises a neck configured to be snap-fit with the protruding structure on the front panel unit or a flange configured to be snap-fit with the neck structure on the front panel unit, and/or

a cooling unit mounting part, which is formed on an upper part of the base and is adjacent to the air supply unit mounting part, and/or

an air supply unit mounting part, which is formed on an upper part of the base and is adjacent to the cooling unit mounting part, and/or

a cover unit mounting part, which is formed on an edge of the base, and/or

a refrigerant unit mounting part, which is formed on an upper part of the base;

the air channel region is formed with at least an air supply unit mounting part, and the liquid channel region is formed with at least a cooling unit mounting part.

According to an improvement of the base unit disclosed in the present invention, the base unit further comprises an edge plate structure at least on the upper part of an edge position of the liquid channel region and protruding outward from the base to the upper part thereof, the edge plate structure and the partition structure form a closed structure around the liquid channel region, and the closed structure is a cavity at least partially closed at the part adjacent to the base.

The desktop cooling fan disclosed by the invention comprises: a base unit comprising a base, wherein the base unit comprises a base on which a lower liquid storage tank is formed in a liquid channel region, a delivering pump is provided in the lower liquid storage tank, the base comprises a front panel unit mounting part, and/or a cooling unit mounting part, and/or an air supply unit mounting part, and/or a cover unit mounting part, and/or a refrigerant unit mounting part, each of the front panel unit mounting part, the cooling unit mounting part, the air supply unit mounting part, the cover unit mounting part, and the refrigerant unit mounting part comprises a connecting part, the connecting part comprises at least a snap-fitting part (such as a bayonet, a tenon-and-mortise structure, a push-pull groove, and other cooperating structures) which is snap-fit by a protruding structure or a recessed structure that cooperates with each other or a screw-threaded part (such as a screw/thread hole connection structure, a screw/nut/through hole, and other cooperating connection structures) in which screwed connectors are connected to each other, and a slot or neck is snap-fit with the neck or slot on the front panel unit and/or the neck or slot on the front panel unit and/or the neck or slot on the cooling unit and/or the neck or slot on the air supply unit and/or the neck or slot on the refrigerant/liquid tank unit and/or the neck or slot on the cover unit in a corresponding and matching manner, and/or

a front panel unit, which comprises at least a front panel, and is at least provided with a docking part at a lower part thereof, wherein the docking part is connected to the connecting part of the front panel unit mounting part in a corresponding and matching manner, and/or

a cooling unit, which comprises at least a wet curtain, a conveying pipe for conveying refrigerant medium to wet curtain, and a wet curtain support for supporting the wet curtain, wherein the wet curtain frame is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the cooling unit mounting part in a corresponding and matching manner, the conveying pipe is connected to a conveying pump, the upper part of the wet curtain frame is further provided with a storage pool, the conveying pipe conveys the refrigerant medium to the storage pool, so as to deliver the refrigerant medium to the storage pool via the delivering pump through the delivery pipe in the working process, and the storage pool is further provided with a diversion pipe for conveying refrigerant medium to the wet curtain and a liquid level device for monitoring the liquid level in the storage pool, which may comprise a liquid level switch, and/or

The liquid level switch here can be controlled and connected to the conveying pump. At this time, the liquid level switch can control the conveying pump to convey refrigerant medium from the lower liquid storage tank to the storage pool according to the liquid level state in the storage pool, thus ensuring that the storage pool has sufficient supply during operation. In addition, the continuous monitoring of the liquid level in the storage pool by the liquid level switch can also be used as the basis for reminding to replenish the container of the refrigerant unit. For example, if the liquid level switch monitors that the liquid level is insufficient in a continuous time, such as one minute, it will give a liquid replenishment reminder, and at this time, it can be prompted by a set warning light or buzzer, for example, the warning light or buzzer can be set on the front panel.

Of course, in order to achieve better control, the liquid level switch, the conveying pump, the warning light, the buzzer, etc. here can be connected to the controller such as a PLC when setting, so as to operate according to the preset program or parameters. an air supply unit, which comprises at least a fan structure driven by a motor and an air channel structure, wherein the air channel structure has at least an air inlet adjacent to the wet curtain, an air outlet for outputting cool air to the outside, and an air channel connecting the air inlet and the air outlet, the main body of the fan structure is located in the air channel between the air inlet and the air outlet, the fan structure of the air supply unit is provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the air supply unit mounting part in a corresponding and matching manner, and/or

a refrigerant unit, which comprises at least a container for accommodating a refrigerant, the refrigerant unit is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the refrigerant unit mounting part in a corresponding and matching manner, and/or

a cover unit, which comprises a housing, the housing forms a box structure at least together with the base and the front panel in a matching manner, the housing is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the cover unit mounting part in a corresponding and matching manner;

According to an improvement of the desktop cooling fan disclosed in the present invention, the fan structure of the air supply unit comprises a fan system and a motor system,

the fan system comprises a cross-flow fan main body and a rotation support structure, the rotating shaft of the cross-flow fan main body is vertically provided, the rotation support structure comprises at least a downward-rotating shaft connected to a lower end of the cross-flow fan main body and provided along the rotating shaft thereof, and the downward-rotating shaft protrudes downward from the cross-flow fan main body or is recessed in the cross-flow fan main body;

the motor system comprises a motor having a motor shaft and a transmission structure, the motor is provided on an upper part of the fan structure, the transmission structure is provided on an upper part of the cross-flow fan body and is connected to the rotating shaft of the cross-flow fan body by an upper part of the cross-flow fan body, the motor shaft is connected to the transmission structure and provides the cross-flow fan main body with power to rotate it;

the air supply unit mounting part on the base comprises a pivot structure, and the pivot structure is configured to be movably connected to the downward-rotating shaft in cooperation with the downward-rotating shaft (when being operated, the downward-rotating shaft is supported by the pivot structure to rotate. When the downward-rotating shaft protrudes downward, the pivot structure here can be a bearing provided at a corresponding position on the base. When being connected, the bearing can be connected to the downward-rotating shaft by the inner ring of the bearing, and the outer ring of the bearing can be fixedly connected to the base; or a groove-type structure matches with the downward-rotating shaft, that is, a groove axially corresponding to the downward-rotating shaft is provided at the position on the base corresponding to the rotating shaft, the downward-rotating shaft is movably accommodated in the groove, and other structures having the same or similar functions are available). The motor is preferably a shaded-pole motor.

According to an improvement of the desktop cooling fan disclosed in the present invention, the pivot structure comprises a bearing structure or a rotating groove structure:

the bearing structure comprises a bearing having an outer ring and a bearing located on the inner side of the outer ring and capable of rotating around a central shaft relative to the outer ring, the downward-rotating shaft protruding below the cross-flow fan main body is connected to the inner ring, and the outer ring is connected to the base;

the rotating groove structure comprises a rotating groove which is recessed toward the base corresponding to the downward-rotating shaft and a rotating groove carrier which forms the rotating groove, the rotating groove carrier is located at the air supply unit mounting part of the base, and the downward-rotating shaft protruding below the cross-flow fan main body is at least movably mounted to the rotating groove at the lower end thereof.

According to an improvement of the desktop cooling fan disclosed in the present invention, the refrigerant unit comprises a container for containing an internal cavity of the refrigerant, and the container has at least a liquid outlet at the bottom part thereof communicated with the internal cavity of the container;

the base also has at least a liquid receiving chamber in the refrigerant unit mounting part, and the liquid receiving chamber has a liquid receiving port corresponding to the liquid outlet.

According to an improvement of the desktop cooling fan disclosed in the present invention, the liquid outlet of the container is further provided with a one-way valve, and the one-way valve limits the refrigerant in the container in the operating state flowing from the liquid outlet to a liquid receiving port.

According to an improvement of the desktop cooling fan disclosed in the present invention, the one-way valve comprises an inner seal, a T-shaped member, and a return spring,

the T-shaped member comprises a connecting rod and a limiting member I formed at one end of the connecting rod, the connecting rod of the T-shaped member is penetratingly connected to the liquid outlet, and the limiting member I and the inner seal are placed at both sides of the liquid outlet, respectively

the return spring is sleeved on a part of the connecting rod located outside the liquid outlet, the size of the limiting member I is larger than the inner diameter of the return spring and limits the return spring to the connecting rod, and the return spring on the one-way valve is always in a compressed state (the length of the return spring in the relaxed state is greater than the maximum length of the connecting rod outside the liquid outlet);

the inner seal is limited to the other end of the connecting rod, and the inner seal forms a seal on the liquid outlet when the inside of the container is attached to the liquid outlet.

According to an improvement of the desktop cooling fan disclosed in the present invention, the refrigerant unit mounting part of the base is further provided with a top pressing member, and the top pressing member is provided corresponding to one end of the connecting rod of the one-way valve so that when in an operating state, the upper end of the top pressing member abuts against the one end of the connecting rod and compresses the return spring to remove the inner seal from the liquid outlet (that is, the inner seal is not sealed with the liquid outlet, so that the refrigerant can flow).

According to an improvement of the desktop cooling fan disclosed in the present invention, the top pressing member is of a long and straight type as a whole, and the lower end of the top pressing member is connected to the liquid storage tank below the liquid receiving port.

According to an improvement of the desktop cooling fan disclosed in the present invention, the housing of the cover unit has at least an opening on one side of the front panel, the base is located at the lower part of the housing, and the housing and the bottom form a space for accommodating the cooling unit, and/or the air supply unit and/or the refrigerant unit:

the cooling unit is provided to the cooling unit mounting part;

the air supply unit is provided to the air supply unit mounting part;

the refrigerant unit is provided to the refrigerant unit mounting part.

According to an improvement of the desktop cooling fan disclosed in the present invention, the housing of the cover unit further has a limiting position, the container of the refrigerant unit further has a limiting part, the limiting part and the limiting position cooperate with each other, and the container is limited to the housing by cooperation between the limiting part and the limiting position.

According to an improvement of the desktop cooling fan disclosed in the present invention, the base is located at the lower part of the housing, and the housing and the bottom form a space for accommodating the cooling unit and/or the air supply unit,

the limiting position is formed on the outer wall of the housing, the container is provided outside the housing through the limitation of the limiting position and the limiting part on the outer wall, the housing is provided with a penetrating housing corresponding to the top pressing member and a limiting port which cooperates with the liquid outlet and the liquid receiving port, and when the one-way valve on the housing is in an operating state through the limiting port, one end of the connecting rod abuts against the upper end of the top pressing member and compresses the return spring to remove the inner seal from the liquid outlet.

According to an improvement of the desktop cooling fan disclosed in the present invention, the limiting position formed on the outer wall of the housing comprises a sliding rail I protruding toward the outside of the housing or a sliding groove I recessed toward the inside of the housing, and the limiting part on the container is formed on the outer wall of the container and comprises a sliding groove II which cooperates with the above sliding rail I or a sliding rail II that cooperates with the above sliding groove I.

According to an improvement of the desktop cooling fan disclosed in the present invention, the base further comprises a partition structure for separating the upper part of the base into a liquid channel region and an air channel region, the partition structure is formed on the upper part of the base and protrudes outward from the base to the upper part thereof, and a tight liquid-proof structure is formed at the connection between the partition structure and the base;

the air channel region is formed with at least an air supply unit mounting part, and the liquid channel region is formed with at least a cooling unit mounting part.

According to an improvement of the desktop cooling fan disclosed in the present invention, the base unit further comprises an edge plate structure at least on the upper part of an edge position of the liquid channel region and protruding outward from the base to the upper part thereof, the edge plate structure and the partition structure form a closed structure around the liquid channel region, and the closed structure is a cavity at least partially closed at the part adjacent to the base.

According to an improvement of a desktop cooling fan disclosed by the present disclosure, a control key and a controller matched with the control key are further provided on the front panel, and the controller comprises a PCB control circuit, a control switch and a PLC, wherein the control switch is matched with the control key and provided on the PCB control circuit, and the control switch is connected with the PLC instruction.

According to an improvement of a desktop cooling fan disclosed by the present disclosure, the control key is a mechanical key or an inductive key. The mechanical key is controlled by using a mechanical structure to transfer force. The inductive key is controlled through optical signals, electrical signals or magnetic signals as medium.

According to an improvement of a desktop cooling fan disclosed by the present disclosure, the wet curtain frame is further provided with a reflux pool, wherein refrigerant medium passing through the wet curtain are refluxed and collected into the reflux pool, the reflux pool is provided with a reflux device, a reflux limiting device is further provided on the liquid storage box cover of the lower liquid storage box, and the reflux limiting device is connected with the reflux device in a matching manner, so that a reflux refrigerant medium passes between the reflux limiting device and the reflux device under the working state, and the reflux limiting device is used for limiting the reflux of refrigerant medium under the triggering condition.

According to an improvement of a desktop cooling fan disclosed by the present disclosure, the reflux limiting device is a one-way valve or an electromagnetic valve, and the one-way valve or the electromagnetic valve is used for limiting the refrigerant medium to flow out of the lower liquid storage tank from the liquid receiving port under the triggering condition. The trigger condition here can be position movement, inclination of the machine body, actively sealing by personnel or detecting information by sensors (such as liquid level information, etc.).

According to an improvement of a desktop cooling fan disclosed by the present disclosure, the front panel unit further comprises a USB device, wherein the USB device comprises a USB interface and a power supply device for supplying power to the USB interface (the power supply device can be a circuit board with a voltage regulating device such as a voltage regulating chip so as to be connected with a high-voltage power supply and realize voltage reduction to supply power to the USB interface), and the USB interface is provided on the front panel.

According to an improvement of a desktop cooling fan disclosed by the present disclosure, the liquid level device comprises a liquid level switch which can be a floating ball-type liquid level switch, a pressure-type liquid level switch, a capacitive-type liquid level switch or an electronic-type liquid level switch.

The entire machine of the desktop cooling fan of the present invention preferably adopts the design of a cross-flow fan and a shaded-pole motor. First, the cross-flow fan has a relatively low noise, and the shaded-pole motor is high in speed, low in noise, low in cost, and excellent in safety in use. The high speed of the motor provides power for the fan, so that the whole machine has a larger air volume and air speed, and the noise of the whole machine is lower than that of machines using centrifugal fans and axial flow fans. By forming a lower liquid storage tank structure which can be opened or closed in the water channel region, the problem that the refrigerant medium can pollute the environment or affect the use safety of devices is effectively solved. At the same time, it also meets the daily charging requirements of smart phones and other terminal devices, and has good functionality and practicality.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor.

FIG. 1 is a schematic diagram of an exploded state in an embodiment of a desktop cooling fan according to the present invention;

FIG. 2 is a schematic diagram of an entire assembled state in an embodiment of FIG. 1;

FIG. 3 is a schematic diagram and a partially enlarged diagram in a connection state of a container (a water tank) in an embodiment of FIG. 1;

FIG. 4 is a top schematic diagram of an embodiment of FIG. 1;

FIG. 5 is a schematic diagram of a connection state of a wet curtain in an embodiment of FIG. 1;

FIG. 6 is a schematic diagram of a state of an air channel structure in an embodiment of FIG. 1;

FIG. 7 is a schematic diagram of a connection state of a water pump in an embodiment of FIG. 1;

FIG. 8 is a schematic diagram of a form of a container (water tank) in an embodiment of FIG. 1;

FIG. 9 is a schematic diagram of a shape of a housing in an embodiment of FIG. 1;

FIG. 10 is a schematic diagram of a connection state between a container (a water tank) and a housing in an embodiment of FIG. 1;

FIG. 11 is a schematic diagram of an isolation state of a partition structure on a base in an embodiment of FIG. 1;

FIG. 12 is a schematic diagram of a connection state of an air supply unit in an embodiment of FIG. 1;

FIG. 13 is a schematic diagram of a cooling unit, in which FIG. 13a is a structural schematic diagram of a cooling unit of FIG. 1; FIG. 13b is a schematic diagram of a partial anatomical structure of a cooling unit of FIG. 1;

FIGS. 14a-c are schematic diagrams of different states of one embodiment of a lower liquid storage tank on a base of FIG. 1, in which a is a closed state, b is an open state, and c is a partially enlarged schematic diagram of an open state, which enlarges the cross groove silica gel back cover;

FIGS. 15a-c are schematic diagrams of different states of another embodiment of a lower liquid storage tank on a base of FIG. 1, in which a is a closed state, b is an open state, and c is a schematic diagram of a floating ball floating when inclined.

DESCRIPTION OF THE EMBODIMENTS

The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, these embodiments do not limit the present invention. Changes in structures, methods, or functions made by those skilled in the art based on these embodiments are all included in the protection scope of the present invention.

Next, taking water as a refrigerant medium as an example, alcohol or brine can also be used as refrigerant medium on the premise of meeting the application requirements.

In the solution of the present invention, the base unit 1000, which is a modular design, is located at the level of the entire cooling fan product as a whole, and is used to carry the remaining components, that is, the remaining parts. When a functional structure such as the front panel unit 2000 or the cooling unit 3000 or the air supply unit 4000 or the cover unit 6000 or the refrigerant unit 5000 is used a unit structure of modular design, it can be organized on the base unit 1000 in an assembly connection manner such as a plug-in connection between sockets/pins/sliding rails/sliding grooves, a connection between screws/bolts/screw holes/nuts.

In the technical solution of the desktop cooling fan of the present invention, when the whole machine adopts a full-modular design, the surface part (here the surface comprises the upper surface, that is, the part of the base 1010 other than the lowermost part, and of course, further comprises the part that can be involved (bottom part) in order to meet the mounting of some units such as the cover unit 6000) is divided into at least the front panel unit mounting part, the cooling unit mounting part, the air supply unit mounting part, the cover unit mounting part, and the refrigerant unit mounting part for detachably mounting the front panel unit 2000, the cooling unit 3000, the air supply unit 4000, the cover unit 6000, and the refrigerant unit 5000. These units are assembled to the corresponding mounting unit positions on the base 1010 in one-to-one correspondence.

In the solution of the present invention, as shown in the figures, the cooling unit 3000, the air supply unit 4000, and the refrigerant unit 5000 may be located on the upper surface part of the base 1010 as a whole, that is, the cooling unit mounting part, the air supply unit mounting part, and the refrigerant unit mounting part may be formed on the upper part of the base 1010. For example, these mounting parts may be provided on the upper surface part of the base 1010 or at least on the upper part of the upper surface. This is provided to facilitate mounting. At the same time, a front panel unit mounting part may be mounted at the front of the base 1010 for vertical mounting the front panel unit 2000. In the figure, the front panel of the front panel unit 2000 is mounted on the base 1010 from top to bottom. In addition, a cover unit mounting part may be provided at the bottom of the base 1010 or at a side position near the bottom for mounting and providing the cover unit 6000. Of course, the part, which is adjacent to the front panel 2030, of the front part of the cover 6010 of the cover unit 6000 is also provided with a structure matching with the front panel 2030, such as a neck matching with the edge of the front panel 2030, so as to improve the fastness of the mounting connection between the front panel 2030 and the cover 6010 and the base 1010.

In the above solution, the connection between the cooling unit 3000, the air supply unit 4000, the refrigerant unit 5000, and the base 1010 may be connected, limited or fixed using a snap-fitting manner, that is, using at least two structures that cooperate with each other and are snap-fit, such as using a tenon-and-mortise structure, a neck and bayonet structure and so on. They can also be connected, limited or fixed using mating threaded structure members, such as using screws with external threads to pass through the through holes provided in the cover 6010 and connected to the base 1010 with screw holes. It includes but is not limited to connection methods suitable for the connection between the cooling unit 3000, the air supply unit 4000, the refrigerant unit 5000, the front panel unit 2000, the cover unit 6000, and the base unit 1000, as long as it can meet the overall assembly and connection of each unit.

In the above solution, as another improvement, in order to divide the base 1010 into a water channel region 1090 and an air channel region 1080, a partition structure 1020 separating the water channel region 1090 and the air channel region 1080 can also be implemented on the base 1010. The partition structure 1020 is provided at the abutting position of the two regions, and is a continuous structure protruding from the corresponding position of the base 1010 to the outside of the base 1010. Of course, in order to separate the water channel region 1090 from the air channel region 1080, the junction of the continuous structure and the surface of the base 1010 in the mounted state is in a closed and isolated state, which can effectively limit the range of the water channel region 1090 to the corresponding region. During the use, it will not result in outflow, such as entering the air channel region 1080, which will affect the use or safe operation. Of course, this partition structure 1020 may be a straight plate structure protruding vertically to the outside of the base 1010 (here perpendicular to the surface of the base 1010), as shown in FIG. 7; may be a curved structure protruding vertically to the outside of the base 1010 (here perpendicular to the surface of the base 1010); it will be enough as long as a complete closed structure can be formed around the water channel region 1090, that is, it will be enough as long as a container 5010-shaped region containing a refrigerant can be formed.

In the above solution, the base 1010 also has a leg or a pad structure for supporting the base 1010, which can be provided on the side opposite to each unit mounting part or on the side of the base 1010, that is, at the bottom or bottom surface of the base 1010 or the outer side or the inner side of the periphery, so as to support the base 1010 or the entire fan.

Applying the above technical solution of the base unit 1000 to a desktop cooling fan may be expressed as comprising, but not limited to, the following technical solutions.

As shown in FIG. 1, the entire desktop cooling fan can comprise the following parts that can be independently detached and mounted.

The base unit 1000 is specifically shown in FIG. 11. In the solution of this embodiment, the base unit is a basic structure that functions as a connection in the entire cold water fan (that is, the remaining functional units will be functionally connected to or associated with the base unit 1000), and the remaining functional structural units can be mounted on the structure or associated with the structure. On the base 1010, the partition structure 1020 protruding to the outside of the base 1010 divides the base 1010 into a water channel region 1090 and an air channel region 1080. The partition structure 1020 and the edge of the adjacent base 1010 convexly form a space for collecting the refrigerant dripped by the wet curtain 3021 during use, and the space is also used to accommodate a pump for delivering the refrigerant to the wet curtain 3021. The refrigerant is delivered by the pump through a liquid delivery pipe to the upper part of the vertically provided wet curtain 3021 so as to wet the wet curtain 3021. The excess refrigerant returns to the space for recycling.

Considering the delivery and recycling of the refrigerant, it can be known that the water channel region 1090 is at least associated with the cooling unit 3000 and the refrigerant unit 5000. That is to say, in the case where the water channel region 1090 is connected to the cooling unit 3000 and the refrigerant unit 5000 without considering additional pipelines, the cooling unit 3000 and the refrigerant unit 5000 should be provided in the water channel region 1090, that is, the situation shown in FIGS. 1, 3, 4, 5, 7, etc.

In this case, when the refrigerating unit 3000 is provided directly above the water channel region 1090, that is, the refrigerating unit 3000 is formed in the refrigerating unit mounting part, the wet curtain support 3010 for carrying the wet curtain 3021 placed the wet curtain 3021 carried by the wet curtain support in the cooling unit mounting part. In order to carry the wet curtain 3021, the wet curtain support 3010 may be a frame structure having a wet curtain 3021 mounting position on the main body. A support structure is provided around the wet curtain 3021 mounting position, that is, the surrounding position, so that the wet curtain 3021 can be stretched and supported on the wet curtain support 3010 smoothly. The lower end of the wet curtain support 3010 is formed with a plurality of bayonets. Corresponding to the bayonets, there are a plurality of flange members 1021 provided on the cooling unit mounting part, that is, the flange members 1021 protruding upward outside from the outer wall of the base 1010 are provided on the base 1010 at the corresponding position as shown in the figures. When being mounted, the bayonet is snap-in on the flange member 1021 to form a snap-fitting structure, so as to limit and fix the wet curtain support 3010. Of course, in order to obtain better fixing efficiency, the bottom of the wet curtain support 3010 may also be provided with a screw hole for screw connection, and a corresponding screwing part is provided at a corresponding cooling unit mounting part, so that it can also pass through the screw hole by screws to further fix the wet curtain support 3010 on the base 1010, so as to obtain better structural stability.

Of course, in order to obtain better mounting performance of the wet curtain 3021, the wet curtain 3021 can also be mounted on the wet curtain fixing frame 3022 before being loaded on the wet curtain support 3010. As shown in the figure, the wet curtain fixing frame 3022 supports the wet curtain 3021 from the lower end of the wet curtain 3021, and the lower end of the wet curtain 3021 is limited to the wet curtain fixing frame 3022, thereby at least facilitating the mounting and fixing of the wet curtain 3021. Of course, the bottom of the wet curtain fixing frame 3022 may also be provided at a fixed bayonet 3023 fitted with the flange member 1021. In FIG. 1, the fixing bayonet 3023 is shown as a part protruding from the fixing frame base edge of the wet curtain fixing frame 3022 toward the base 1010. the fixing bayonet 3023 can be a hollow notch structure formed on the fixing frame base, and the hollow notch structure is matched with the flange member 1021, that is, when the hollow notch structure is matched with the flange member, the flange member 1021 is embedded into the hollow of the fixing bayonet 3023 to form a limit; it may also be provided at a through hole corresponding to the screwing part, so that the wet curtain fixing frame 3022 can also be fixed in a snap-fitting screwing manner.

On the basis of the above solution, the front panel unit 2000 provided at the front of the base 1010 has a front panel 2030. As shown in FIG. 1, the lower end of the front panel 2030, especially its edge position, is provided with a convex edge mounted and connected to the base 1010. The convex edge protrudes toward the base 1010. Correspondingly, a convex edge groove corresponding to the convex edge is provided on the front of the base 1010, that is, the corresponding front panel mounting part. As can be seen in the figure, the convex edge groove is a stepped groove formed on the edge of the base 1010. During mounting, the convex edge protruding toward the base 1010 is properly matched and connected to the convex edge groove, thereby forming a certain degree of locking and limiting, so that the front panel is mounted and fixed on the base 1010. Of course, the connection and fixing of the front panel can also be fixed or connected using a snap-fitting structure or a screwing structure as stated above. Of course, in FIG. 1, the part corresponding to the front panel vacancy above the base 1010 can also have a corresponding convex edge structure and cooperate with the convex edge groove structure on the cover 6010 at the corresponding position to form an effective overall connection structure on the outside of the cooling fan through the connection therebetween. Of course, this additional connection is not necessary under the premise of obtaining a stable connection with the base 1010.

In addition, in order to meet the charging requirement of users for mobile devices such as mobile phones through a USB interface, a USB interface 2031 may be provided on the front panel 2030, and the interface is connected with the power supply incoming line, so that the power supply can supply power to meet the charging requirement for mobile phones and other devices when the user uses it. Generally, the power supply here has the functions of voltage transformation, rectification, etc., so as to supply power to the USB interface and output, for example, converting 220V/50 Hz commercial power into 5V DC charging voltage and outputting the voltage from the USB interface 2031.

At the same time, a control key 2032 can also be provided on the front panel 2030. In order to cooperate with the operation of the control key 2032, a PCB printed with a control circuit is also provided at the corresponding position on the back of the front panel 2030, and a switch matched with the control key 2032 is connected to the control circuit (the switch here can be a mechanical switch in the form of a button or an inductive switch). At the same time, the control circuit is also connected with PLC, etc., which can be used to control the working state of a delivering pump and a cross-flow fan according to the switch instruction.

Of course, in this solution, the main body of the front panel is further provided with an air outlet 2010 passing through the panel. As shown in FIG. 2, the air outlet 2010 is used to blow out the cool air blown from the air supply unit 4000 from the cooling fan during use to cool the outside.

In order to be able to adjust the air direction of the cool air blown from the air outlet 2010, the air outlet 2010 on the front panel is further provided with a direction adjusting mechanism, and the direction adjusting mechanism may comprise a horizontally swinging blade 2011 for vertically adjusting the air supply direction; may also comprise a vertically swinging blade 2020 for horizontally adjusting the air supply direction; such swinging blade for adjusting the air direction may exist at the same time, or a single one may be selected, and the air supply direction may be adjusted only in a single direction. As shown in FIG. 1, there is a case where the air supply direction is adjusted horizontally. The horizontally swinging blade 2011 may be provided with a plurality of horizontally swinging blade 2011 units from top to bottom, and the end at one side of the front side and the back side of each unit is the end shaft, which is used to movably connect to the corresponding end shaft pivot at the edge position of the air outlet 2010. In addition, on the other side of each unit opposite the side where the end shaft is located, a movable end shaft is connected. The movable end shaft of each unit is used to be movably connected to the same limiting bar. The limiting bar has a movable end hole matched with the movable end part, and the movable end shaft can rotate in the movable end hole. In order to enable the horizontally swinging blade 2011 to vertically adjust the air direction, the horizontally swinging blade 2011 can also be connected with a horizontally fluctuating paddle 2012, which can be connected to a certain horizontally swinging blade 2011 unit, as shown in the figure, and can also be connected to a limiting bar. When the horizontally fluctuating paddle 2012 fluctuates in the vertical direction, the horizontally swinging blade 2011 unit will deflect using the end shaft on one side as the shaft, and the other side will drag the limiting bar so that all the horizontally swinging blades 2011 on the air outlet are driven, and the air supply direction is vertically adjusted.

Similarly, the vertically swinging blade 2020 may be provided with a plurality of vertically swinging blade units from left to right, and the end at one side of the front side and the back side of each unit is the end shaft, which is used to movably connect to the corresponding vertical end shaft pivot at the edge position of the air outlet 2010. In addition, in order to provide additional adjustment of the lateral air direction, the vertically swinging blade 2020 can also be provided with a structure for horizontally adjusting the air supply direction. That is, a vertical movable end shaft is connected to the other side of each unit opposite the side where the end shaft is located. The vertical movable end shaft of each unit is used to be movably connected to the same horizontal limiting bar. The horizontal limiting bar has a movable end hole matched with the horizontal movable end part, and the movable end shaft can rotate in the movable end hole. In order to enable the vertically swinging blade 2020 to horizontally adjust the air direction, the vertically swinging blade 2020 can also be connected with a vertically fluctuating paddle, which can be connected to a certain vertically swinging blade unit, as shown in the figure, and can also be connected to a horizontal limiting bar. When the vertically fluctuating paddle fluctuates in the horizontal direction, the vertically swinging blade unit will deflect using the end shaft on one side as the shaft, and the other side will drag the horizontal limiting bar so that all the vertically swinging blade units on the air outlet 2010 are driven, and the air supply direction is horizontally adjusted.

On the basis of the above solution, the cover unit 6000 provided on the upper part of the base 1010 from the top to the bottom mainly comprises the cover 6010, which has a pair of opposite surfaces (surface I and surface II), a top surface, and a right side opposite to the front panel. At this time, the base 1010 of the cover 6010 may or may not be provided due to the existence of the base 1010. The figure shows the case where the bottom surface is not provided. Here, as shown in FIG. 1, the cover 6010 has, at least at the lower end of the opposite surface, a fold that is bent inward. The base 1010 fixes the cover 6010 through the fold. It can be seen that a connection hole can be formed in the fold. The hole can be used to limit the fold to the base 1010 by screws or a clamping block matching with the connecting hole. Of course, the base 1010 can also be formed with a fold groove having an opening facing the outside of the base 1010 and extending along the side of the base 1010 to match the fold. The fold moves along the fold groove in the fold groove to assemble the cover 6010 to the base 1010. The surface I of the cover 6010 is adjacent to the wet curtain 3021 of the cooling unit 3000. Therefore, in order to meet the supply requirements of the cool air, the air inlet 6011 of the cooling fan is provided on the surface I so that the air outside the machine enters the machine through the air inlet 6011 during operating, exchanges heat with the refrigerant thereon through the wet curtain 3021 to form cool air, and then is blown out from the air outlet on the front panel through the air channel structure 4020 so as to cool the outside.

In addition, a number of foot pads 7000 may be provided on the parts such as the cover 6010 or the base 1010 in contact with the desktop or the ground to prevent wear.

Additionally, as shown in FIG. 1, FIG. 6, and FIG. 10, the container 5010 of the refrigerant unit 5000 of the present solution may also be supported outside the housing, and at this time, a container 5010 limiting position for defining the container 5010 may be formed on the housing. In the figure, the container 5010 limiting position is defined at the edge position of the housing opposite to the front panel, and the refrigerant unit mounting part on the base 1010 is also formed at the corresponding edge position. The L-shaped container 5010 limiting position shown in the figure comprises a part of the top surface near the edge. The part of the top surface sinks a number of depths in parallel, and also comprises a part of right side (that is, the side I) located in the upper part and translating to the direction of the front panel by a certain distance. Here, the sinking or translating side of the sinking part on the top surface and the translating part on the right side can be matched with the size of the container 5010 in the same direction. At this time, the container 5010 also forms an approximately square structure as a whole.

In order to limit the container 5010 to the housing, the side I translating on the right side also has at least one sliding rail structure 6021 protruding toward the container 5010 or a rail structure 5031 recessed toward the housing. Correspondingly, a matching rail structure 5031 recessed into the container 5010 or a sliding rail structure 6021 protruding toward the housing is formed on the adjacent side wall of the container 5010; FIG. 8 and FIG. 10 show the case that a pair of sliding rail structures 6021 vertically provided and protruding toward the container 5010 are formed on the side I, or a rail structure 5031 recessed toward the housing is formed on the adjacent side wall of the container 5010. As can be seen from the figure, the cross-sectional structure of the main body of the sliding rail structure 6021 here perpendicular to the extension direction is generally “

” shaped, so the rail structure 5031 is also a concave shape matching with it. Of course, we should know that the setting direction (whether it is horizontal, vertical, or inclined), the number of settings (whether one or more groups are provided), the set position (whether it is provided at the edge or the center or other positions) and the set cross-section structure (whether it is provided in a triangular wedge, etc.) of the sliding rail structure 6021 or the rail structure 5031 are not particularly limited, as long as the cooperation of the sliding rail structure 6021 and the rail structure 5031 is provided to realize the connection and limitation of the container 5010 and the housing.

Of course, in order to deliver the refrigerant to the wet curtain 3021, that is, to meet the requirement of delivering the refrigerant into the water channel region 1090 on the base 1010, the container 5010 is also provided with a one-way valve 5020, which is used to communicate the container 5010 and the water channel region 1090, that is, the lower liquid storage tank formed on the base 1010 in the operating state, and further provides a delivering pump 3033 provided in the lower liquid storage tank to deliver the refrigerant to the wet curtain 3021 via a delivering pipe 3032. As shown in FIG. 3, a case of a one-way valve 5020 provided at the bottom of the container 5010 is shown. The one-way valve 5020 comprises an inner seal 5021, a T-shaped member 5022, and a return spring 5023. The T-shaped member 5022 comprises a connecting rod and a limiting member I formed at one end of the connecting rod, and the connecting rod of the T-shaped member 5022 is penetratingly connected to the liquid outlet. The limiting member I and the inner sealing member 5021 are placed on both sides of the liquid outlet, respectively; the return spring 5023 is sleeved on the part where the connecting rod is located outside the liquid outlet, the size of the limiting member I is larger than the inner diameter of the return spring 5023 and limits the return spring 5023 to the connecting rod, and the return spring 5023 on the one-way valve 5020 is always in a compressed state (i.e., the length of the return spring 5023 in the relaxed state is greater than the maximum length of the connecting rod outside the liquid outlet); the inner seal 5021 is limited to the other end of the connecting rod, and the inner seal 5021 forms a seal with the liquid outlet when being attached to the liquid outlet from the inside of the container 5010. Correspondingly, a top pressing member 1031 is also provided in the lower liquid storage tank. The one-way valve 5020 passes through the liquid receiving port 6012 corresponding to the top pressing member 1031, that is, the liquid receiving port 6012 provided above the top pressing member 1031. The one-way valve 5020 enters the lower liquid storage tank from the liquid receiving port 6012 (of course, at this time, the corresponding position on the cover 6010 should also be provided with a cover 6010 interface for docking. This structure is at least passed by the one-way valve 5020 when entering the lower liquid storage tank). The top pressing member 1031 is provided corresponding to one end of the connecting rod of the one-way valve 5020, so that in the operating state, the upper end of the top pressing member 1031 is in contact with the one end of the connecting rod and compresses the return spring 5023 to remove the inner seal 5021 from the liquid outlet (that is, the inner seal 5021 is not sealed with the liquid outlet, so that the refrigerant can flow).

In order to better realize the distribution of the refrigerant on the wet curtain 3021, that is, to realize the best cool air supplying and cooling effect, the refrigerant medium delivered to the wet curtain 3021 by the delivery pipe 3032 is distributed through the distributor, and the distributor here is associated with the storage pool 3013 on the wet curtain frame. That is to say, the distributor can extend a plurality of diversion pipes to the wet curtain at the bottom of the storage pool 3013, so that a distributor meeting the requirements is formed on the storage pool. In FIGS. 13a and 13b , the situation is shown that the conveying pipe 3032 conveys the refrigerant medium (which may be water) to the storage pool 3013 through the water inlet pipe 3011.

At the same time, a liquid level switch 3012 can be provided in the storage pool 3013 to monitor the liquid level in the storage pool, where the monitored liquid level reflects whether the working state of the delivering pump 1011 to deliver refrigerant medium into the storage pool is normal. At this time, when the liquid level signals acquired by the liquid level switch 3012 in a continuous period (which can be within one minute) are all lower than the warning level, it can indicate that the reserve of refrigerant medium in the lower liquid storage tank is insufficient or the circulation pipeline of refrigerant medium between the container 5010, the lower liquid storage tank and the storage pool has failed, and it is necessary to replenish the refrigerant medium or carry out maintenance. At this time, a warning signal can be issued, such as activating a signal lamp or buzzer on the front panel.

The liquid level switch can be a floating ball-type liquid level switch, a pressure-type liquid level switch, a capacitive-type liquid level switch or an electronic-type liquid level switch. FIGS. 13a and 13b show the application of a floating ball-type liquid level switch, which comprises a float 30121, an ejector rod 30122 connected to the float and a trigger switch 30123. The average density of the float is lower than that of the refrigerant medium, so that the float can rise or fall with the fluctuation of the liquid level in the storage pool. The trigger switch 30123 here is in a dormant state when the liquid level is high and the float 30121 is in a floating state, but the trigger switch 30123 is collided by the ejector rod 30122. Since the trigger switch 30123 is connected to the working circuit of a signal lamp or buzzer, the signal lamp or buzzer is dormant at this time, and no signal is sent to replenish refrigerant medium or overhaul. On the contrary, the float falls, the ejector rod 30122 is separated from the trigger switch 30123, and the trigger switch is activated to activate the signal lamp or buzzer. In the same way, the pressure-type liquid level switch, the capacitive-type liquid level switch or the electronic-type liquid level switch also make similar operations in order to acquire liquid level information.

In order to make the refrigerant medium passing through the wet curtain return to the lower liquid storage tank safely and efficiently, a reflux pool is formed on the wet curtain frame below the wet curtain for receiving the refrigerant medium flowing back from the wet curtain during operation. A reflux device is provided at the bottom of the reflux pool, and a reflux limiting device is correspondingly provided on the liquid storage tank cover. a channel is formed between the liquid storage tank cover and the reflux limiting device for the refrigerant medium to flow from the reflux pool to the lower liquid storage tank. In order to prevent the overflow risk that the refrigerant medium in the lower liquid storage tank flows back to the reflux pool through the channel in a state such as suspension of work, transportation and movement, or in an inclined state, the reflux limiting device is provided to prevent reflux in this state.

FIGS. 14a-c shows a situation of the reflux limiting device: the reflux limiting device comprises a docking port 1112 formed on the liquid storage box cover, a docking pipe 1113 connected to the docking port, and a cross groove silica gel piece 1111 connected to the docking port. A cross notch 1110 is formed on the cross groove silica gel piece 1111, and the docking port 1112 is matched with the reflux joint on the reflux device. A seal is adopted between the docking port 1112 and the reflux joint for sealing. When the cross groove silica gel piece 1111 keeps the cross notch 11110 closed without external force, the cross groove silica gel piece 1111 is in a closed state, so that a closed space is formed on the upper part of the cross groove silica gel piece 1111 for the docking pipe 1113. Therefore, in the working state, the refrigerant medium flowing back to the reflux pool through the wet curtain is collected on the upper part of the cross groove silica gel piece 1111, so that the cross notch 11110 is opened by gravity to be in an opening form 111101 which is opened. At this time, the refrigerant medium is smoothly returned to the lower liquid storage tank. However, after stopping working, the refrigerant medium collected on the upper part of the cross groove silica gel piece 1111 cannot be replenished, so that gravity cannot be formed to open the cross notch 11110 into an open state 111101, and the cross notch 11110 is restored to a closed state, thereby preventing the refrigerant medium from flowing backwards from the lower liquid storage tank through the docking port 1112.

FIGS. 15a-c show another situation of the reflux limiting device: the reflux limiting device comprises a docking port 1112 formed on the liquid storage box cover, a docking pipe 1113 connected to the docking port 1112, and a floating ball 1114 provided in the docking pipe. The average density of the floating ball 1114 is lower than that of the refrigerant medium. The docking port 1112 is matched with the reflux joint on the reflux device. A seal is adopted between the docking port and the reflux joint for sealing. The size of the floating ball 1114 is matched with the inner diameter of the docking port 1112 or the inner diameter of the part of the docking pipe 1113 located on the upper part of the floating ball 1114, which forms a blocking position suitable for the floating ball, that is, the floating ball 1114 can be blocked when moving to the corresponding position. Therefore, in the working state, the refrigerant medium flowing back to the reflux pool through the wet curtain is collected on the upper part of the floating ball 1114, which impacts the floating ball. Because the delivering pump continuously delivers the refrigerant medium in the lower liquid storage tank to the storage pool, the liquid level in the lower liquid storage tank must be in a lower state, and the floating ball must be in a lower position and get out of the blocking position at this time. At this time, the refrigerant medium smoothly returns to the lower liquid storage tank. After stopping working, the refrigerant medium collected in the lower liquid storage tank continuously raises the liquid level, and raises the position of the floating ball until it reaches the blocking position, thus cutting off the communication between the docking port 1112 and the reflux interface on the reflux device, thus preventing the refrigerant medium from flowing backwards from the lower liquid storage tank through the docking port 1112.

Of course, in the working state, when the device inclines, the refrigerant medium will converge due to the inclination of the position, and the floating ball will be lifted to be blocked, which will also prevent the refrigerant medium from flowing backwards and overflowing.

Of course, in order to achieve cooling and air supplying, an air supply unit 4000 for air supply should also be provided in the machine body. The air supply unit 4000 comprises a fan structure driven by a motor and an air channel structure 4020, wherein the fan structure adopts the cross-flow fan 4010 driven by a motor. The cross-flow fan 4010 is provided vertically in the air supply unit 4000 of the base 1010, that is, the rotating shaft of the cross-flow fan 4010 is vertical to the base 1010. The lower end of the rotating shaft of the cross-flow fan 4010 has a rotation support mechanism that supports the rotation of the cross-flow fan 4010. The rotation support mechanism may be a downward-rotating shaft protruding downward along the rotating shaft or a downward-rotating shaft recessed inwardly toward the cross-flow fan 4010 in the direction of the rotating shaft; correspondingly to the downward-rotating shaft here, a downward-rotating shaft holder supporting and matching with the downward-rotating shaft needs to be formed correspondingly at the air supply unit mounting part of the base 1010. The downward-rotating shaft holder and the rotating shaft of the cross-flow fan 4010 are coaxially provided, so that the holder must be coaxially provided with the downward-rotating shaft. Correspondingly to the downward-rotating shaft protruding downwards, the connecting part between its matching downward-rotating shaft holder and the downward-rotating shaft should be recessed. Such a recessed structure may be a groove-shaped downward-rotating shaft holder recessed toward the base 1010, or an inner ring of a matching bearing. The inner ring is connected to the convex downward-rotating shaft holder, and the outer ring is fixed to the base 1010. These technical solutions and the similar technical solutions are applicable; and when the downward-rotating shaft is a concave structure, a convex downward-rotating shaft holder corresponding to the concave structure is provided at the base 1010. Similarly, the downward-rotating shaft holder can be directly fit and formed into the groove-shaped downward-rotating shaft to support its rotation. Of course, the downward-rotating shaft holder is connected to the bearing inner ring, and the outer ring is fixed to the groove-shaped downward-rotating shaft. These technical solutions and the similar technical solutions are applicable.

In the above setting, the motor for driving the cross-flow fan 4010 to rotate around the shaft is located above the cross-flow fan 4010, and drives the rotation of the cross-flow fan 4010 from the upper part of the cross-flow fan 4010. At this time, the motor itself can be limited to the corresponding inside of the cover 6010 or the air channel mechanism or the wet curtain 3021 frame and other fixed adjacent structures to meet the requirements of driving the rotation. Of course, the motor here can use a shaded-pole motor 4030 to achieve lower operating noise and more stable operation. Of course, other types of motors can also be supported.

In addition, the air channel structure 4020 is formed with a structure which accommodates the cross-flow fan 4010 and in which airflow flows in the cooling fan. It undoubtedly has an air inlet 6011 adjacent to the wet curtain 3021, an air outlet configured to output cool air to the outside, and an air channel connecting the air inlet 6011 and the air outlet and configured to adjust the air direction in the machine. The air outlet is communicated with the air outlet 2010 on the front panel for exhausting air to the outside of the machine. The cross-flow fan 4010 is accommodated in the air channel between the air inlet 6011 and the air outlet.

As shown in FIGS. 1 and 3-6, an embodiment of an air supply unit 4000 is shown, in which a cross-flow fan 4010 has a downward-rotating shaft downwardly extending and protruding downward along the rotating shaft, and is supportedly connected to the base 1010 by the downward-rotating shaft. The output end of the shaded-pole motor 4030 is connected above the rotating shaft of the shaded-pole motor 4030, and the shaded-pole motor 4030 is limited to the air channel structure 4020, so that the shaded-pole motor 4030 can drive the cross-flow fan 4010 to rotate around the rotating shaft during operation. Air enters the air inlet 6011 on the cover 6010, and exchanges heat with the refrigerant thereon through the wet curtain 3021, and then is output from the air outlet 2010 on the front panel through the air channel structure 4020.

The mounting and connection state of the cooling fan according to the present invention is shown in FIGS. 1-12. During operation, the motor is driven by the cross-flow fan 4010 to rotate. The rotation occurs inside the air channel of the air channel structure 4020 and air enters the air inlet 6011; a container 5010 containing a refrigerant such as water is mounted on the mounting position, and the top of the one-way valve 5020 therebelow is in contact with the top pressing member 1031 on the base 1010. At this time, the return spring 5023 is compressed, and the connecting rod is forced to move upward. The limiting member I that seals the liquid outlet from the inner part is loosened, the liquid outlet is turned on, and the refrigerant flows out, and enters the lower liquid storage tank on the base 1010 through the liquid receiving port 6012; under the working state, the delivering pump 3033 in the lower liquid storage tank operates and delivers the refrigerant medium to the storage pool through the delivering pipe 3032, and the refrigerant medium is distributed to the wet curtain 3021 through the distributor for wetting; the airflow passes through the wet curtain 3021 for heat exchange, cools and becomes cold air, then enters the air channel to turn, and finally is blown out of the machine from the air outlet 2010 on the front panel. After leaving the wet curtain, the refrigerant medium passing through the wet curtain is collected into the reflux pool, and returned to the lower liquid storage tank through the matched reflux device and reflux limiting device. By adjusting the direction of the swinging blades of the air outlet 2010, the air supply direction can be adjusted by itself, for example, the horizontal paddle 2012 fluctuates up and down to achieve a vertical change in the air direction. In the working state, when the liquid level in the storage pool does not meet the preset value in the detection of the liquid level switch, an alarm will be triggered to remind for rehydration or device maintenance. When the device is moved or inclined, the reflux limiting device cuts off the reflux channel between the reflux pool and the lower liquid storage tank, thus forming safety protection.

The cover 6010 is provided with an air inlet grid to form an air inlet 6011, the front plate is provided with an air outlet, and the air outlet is provided with horizontal blades and vertical blades for adjusting the air direction.

The cross-flow fan system is vertically mounted on the chassis. The shaded-pole motor 4030 is provided at the top of the air channel. If the machine tilts, the water in the chassis cannot be sprinkled on the motor to ensure the safety of the whole machine.

Ribs are provided on the air inlet grid of the cover 6010. The wet curtain 3021 paper water support is mounted on the chassis, forms a guide rail with the ribs of the cover 6010, and is provided with the wet curtain 3021 paper therein. The air inlet 6011 is provided on the rightmost side of the whole machine. The air outlet is provided as close to the left side of the whole machine as possible according to the air channel and the size of the whole machine, so that the distance between the air inlet 6011 and the air outlet is relatively long as possible, thus avoiding return air from affecting the refrigeration efficiency of the whole machine. (If the air outlet is relatively close to the air inlet 6011, the air blown out of the air outlet of the whole machine will be sucked into the fan again by the fan from the air inlet 6011 to form a short circuit, i.e. return air, affecting the efficiency of the whole machine.)

The air outlet of the machine is trumpet-shaped, which increases the air outlet and can effectively increase the air volume.

The water tank is provided at the rear side of the whole machine.

The cover 6010 is provided with a rail and the water tank is provided with a rail. The water tank is mounted at the rear side of the cover 6010 and is used for mounting and removal through the cooperation of the rails. The water tank and the cover 6010 are mounted through the cooperation of the rails. The water tank moves upward to take out the water tank.

The chassis is provided with partition features. The chassis into divided two regions, one region is a fan air channel mounting region, and the other region is a water channel region 1090. The wet curtain 3021 paper support and the water tank are mounted above the water channel region 1090.

When the water tank is mounted on the machine, the control valve of the water tank is pushed open by the top pillars provided on the chassis, the control valve of the water tank is turned on, the water in the water tank flows downwards into the water channel region 1090 of the chassis through the valve (when the water level of the water channel region 1090 reaches the level of the horizontal plane, the valve is turned off by the horizontal plane, and water does not flow downwards any more, and after the water level is lower than the horizontal plane, water in the water tank flows downwards again), and then water is pumped to the upper water receiving box of the wet curtain 3021 paper support through the water pump provided in the water channel region 1090. The water receiving box is provided with an opening through which water flows downward. Water flows downward to the wet curtain 3021 paper mounted in the wet curtain 3021 paper support through the opening. Water flows downward to the water channel region 1090 of the chassis through the wet curtain 3021 paper.

As shown in FIG. 1, the whole machine parts included in this machine are introduced.

As shown in FIG. 2, the cover is provided with an air inlet grid, and the front panel is provided with an air outlet. The air outlet is provided with horizontal blades and vertical blades to adjust the air outlet direction. The front panel is provided with a control key and a USB charging port for charging the mobile phone.

As shown in FIG. 3, the cross-flow wind turbine system is vertically mounted on the chassis. The shaded-pole motor is provided at the top of the air duct. If the machine inclines, the water in the chassis cannot be sprinkled on the motor to ensure the safety of the whole machine.

As shown in FIG. 4 and FIG. 5, ribs are provided on the air inlet grid of the cover. The wet curtain paper water support is mounted on the chassis, forms a guide rail with the ribs of the cover, and is provided with the wet curtain paper therein. The air inlet is provided on the rightmost side of the whole machine. The air outlet is provided as close to the left side of the whole machine as possible according to the air channel and the size of the whole machine, so that the distance between the air inlet and the air outlet is relatively long as possible, thus avoiding return air from affecting the refrigeration efficiency of the whole machine. (If the air outlet is relatively close to the air inlet, the air blown out of the air outlet of the whole machine will be sucked into the fan again by the fan from the air inlet to form a short circuit, i.e. return air, affecting the efficiency of the whole machine.)

As shown in FIG. 5, the air outlet of the machine is trumpet-shaped, which increases the air outlet and can effectively increase the air volume.

As shown in FIG. 1, the entire machine adopts the design of a cross-flow fan and a shaded-pole motor. First, the cross-flow fan has a relatively low noise, and the shaded-pole motor is high in speed, low in noise, low in cost. The high speed of the motor provides power for the fan, so that the whole machine has a larger air volume and air speed, and the noise of the whole machine is lower than that of machines using centrifugal fans and axial flow fans.

As shown in FIG. 4, the water tank is provided at the rear side of the whole machine.

As shown in FIG. 9 and FIG. 8, the cover is provided with a rail and the water tank is provided with a rail. The water tank is mounted at the rear side of the cover and is used for mounting and removal through the cooperation of the rails.

As shown in FIG. 6, the water tank and the cover are mounted through the cooperation of the rails. As shown in FIG. 10, the water tank moves upward to take out the water tank.

As shown in FIG. 11 and FIG. 12, the chassis is provided with partition features. The chassis into divided two regions, one region is a fan air channel mounting region, and the other region is a water channel region (a water storage box). The wet curtain paper support and the water tank are mounted above the water channel region (as shown in FIGS. 4 and 7).

As shown in FIG. 3, when the water tank is mounted on the machine, the control valve of the water tank is pushed open by the top pillars provided on the chassis, the control valve of the water tank is turned on, the water in the water tank flows downwards into the water channel region of the chassis through the valve (when the water level of the water channel region reaches the level of the horizontal plane, the valve is turned off by the horizontal plane, and water does not flow downwards any more, and after the water level is lower than the horizontal plane, water in the water tank flows downwards again), and then water is pumped to the upper water receiving box of the wet curtain paper support through the water pump provided in the water channel region. The water receiving box is provided with an opening through which water flows downward. Water flows downward to the wet curtain paper mounted in the wet curtain paper support through the opening. Water flows downward to the water channel region of the chassis through the wet curtain paper.

As shown in FIGS. 13a-b , there is a lower water level switch in the lower water box, which can remind to add water in time to ensure the cooling comfort of customers. When there is enough water in the water tank, the float floats up and the unit runs normally. When the water in the water tank and the water storage box are used up, the pump cannot pump water, the float cannot float up, and the low water level switch acts, causing a buzz to remind customers to add water.

As shown in FIGS. 14a-c and 15a-c , there are two mounting schemes for the water storage box. The water channel region in the chassis is an open area when starting up and running, which can run normally, and it is a closed area when stopping, so as to prevent water leakage caused by large angle inclination of the unit during transportation and movement.

As shown in FIGS. 14a-c , according to scheme 1 of the water storage box component, the water storage box component in a chassis comprises a water storage box, a water storage box cover, a sealing element, a cross groove sealing silica gel, a sealing ring, etc. The mounting position of the water storage box and the water storage box cover, the water pump outlet, the water pipe outlet and the water tank mounting position are sealed with silica gel, and the backwater lower water inlet is sealed with the cross groove sealing silica gel. When the whole machine is running, there is backwater on the back cover of the cross groove silica gel, and the gravity of backwater pushes open the silica gel cross groove to launch water. When carrying obliquely, there is no gravity of backwater, and the back cover of the cross groove silica gel is restored to its original state, sealing the position of the backwater lower water inlet, ensuring that the whole water storage box is a closed area, thus preventing water leakage.

As shown in FIGS. 15a-c , according to scheme 2 of the water storage box component, the water storage box component in a chassis comprises a water storage box, a water storage box cover, a sealing element, a floating ball, etc. The mounting position of the water storage box and the water storage box cover, the water pump outlet, the water pipe outlet and the water tank mounting position are sealed with silica gel, and the backwater lower water inlet is sealed in the manner of a floating ball+silica gel. When the whole machine runs, the water level is low, and there is gravity impact of backwater above. The floating ball is in a lower position, and normal backwater can be carried out. When carrying obliquely, the floating ball floats upwards to seal the position of the backwater lower water inlet, ensuring that the whole water storage box is a closed area, thus preventing water leakage.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, but can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in every respect. The scope of the present invention is defined by the appended claims rather than the above description, and therefore all changes that fall within the meaning and range of equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims shall not be regarded as limiting the claims involved.

In addition, although it should be understood that although this specification is described in terms of embodiments, not every embodiment includes only one independent technical solution. This description of the specification is for the sake of clarity only. Those skilled in the art should take the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. 

1. A base unit, comprising a base for detachably carrying a front panel unit, and/or a cooling unit, and/or an air supply unit mounting part, and/or a cover unit, and/or a refrigerant unit, and a partition structure for separating the upper part of the base into a liquid channel region and an air channel region, wherein the partition structure is formed on the upper part of the base and protrudes outward from the base to the upper part thereof, and a tight liquid-proof structure is formed at the connection between the partition structure and the base; the upper part of the liquid channel region is also provided with a liquid storage box cover in a matching way, and the liquid storage box cover at least partially closes the liquid channel region to form a lower liquid storage box; the base comprises: a front panel unit mounting part, which is formed on a front part of the base, and/or a cooling unit mounting part, which is formed on an upper part of the base and is adjacent to the air supply unit mounting part, and/or an air supply unit mounting part, which is formed on an upper part of the base and is adjacent to the cooling unit mounting part, and/or a cover unit mounting part, which is formed on an edge of the base, and/or a refrigerant unit mounting part, which is formed on an upper part of the base; wherein the air channel region is formed with at least an air supply unit mounting part, and the liquid channel region is formed with at least a cooling unit mounting part.
 2. The base unit according to claim 1, wherein the base unit further comprises an edge plate structure at least on the upper part of an edge position of the liquid channel region and protruding outward from the base to the upper part thereof, the edge plate structure and the partition structure form a closed structure around the liquid channel region, and the closed structure is a cavity at least partially closed at the part adjacent to the base.
 3. A desktop cooling fan, comprising: a base unit comprising a base, wherein the base unit comprises a base on which a lower liquid storage tank is formed in a liquid channel region, a delivering pump is provided in the lower liquid storage tank, the base comprises a front panel unit mounting part, and/or a cooling unit mounting part, and/or an air supply unit mounting part, and/or a cover unit mounting part, and/or a refrigerant unit mounting part, each of the front panel unit mounting part, the cooling unit mounting part, the air supply unit mounting part, the cover unit mounting part, and the refrigerant unit mounting part comprises a connecting part, and the connecting part comprises at least a snap-fitting part which is snap-fit by a protruding structure or a recessed structure that cooperates with each other or a screw-threaded part in which screwed connectors are connected to each other, and/or a front panel unit, which comprises at least a front panel, and is at least provided with a docking part at a lower part thereof, wherein the docking part is connected to the connecting part of the front panel unit mounting part in a corresponding and matching manner, and/or a cooling unit, which comprises at least a wet curtain, a conveying pipe for conveying refrigerant medium to wet curtain, and a wet curtain support for supporting the wet curtain, wherein the wet curtain frame is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the cooling unit mounting part in a corresponding and matching manner, the conveying pipe is connected to a conveying pump, the upper part of the wet curtain frame is further provided with a storage pool, the conveying pipe conveys the refrigerant medium to the storage pool, and the storage pool is further provided with a diversion pipe for conveying refrigerant medium to the wet curtain and a liquid level device for monitoring the liquid level in the storage pool, and/or an air supply unit, which comprises at least a fan structure driven by a motor and an air channel structure, wherein the air channel structure has at least an air inlet adjacent to the wet curtain, an air outlet for outputting cool air to the outside, and an air channel connecting the air inlet and the air outlet, the main body of the fan structure is located in the air channel between the air inlet and the air outlet, the fan structure of the air supply unit is provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the air supply unit mounting part in a corresponding and matching manner, and/or a refrigerant unit, which comprises at least a container for accommodating a refrigerant, the refrigerant unit is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the refrigerant unit mounting part in a corresponding and matching manner, and/or a cover unit, which comprises a housing, the housing forms a box structure at least together with the base and the front panel in a matching manner, the housing is at least provided with a docking part at a lower part thereof, and the docking part is connected to the connecting part of the cover unit mounting part in a corresponding and matching manner.
 4. The desktop cooling fan according to claim 3, wherein the fan structure of the air supply unit comprises a fan system and a motor system, the fan system comprises a cross-flow fan main body and a rotation support structure, the rotating shaft of the cross-flow fan main body is vertically provided, the rotation support structure comprises at least a downward-rotating shaft connected to a lower end of the cross-flow fan main body and provided along the rotating shaft thereof, and the downward-rotating shaft protrudes downward from the cross-flow fan main body or is recessed in the cross-flow fan main body; the motor system comprises a motor having a motor shaft and a transmission structure, the motor is provided on an upper part of the fan structure, the transmission structure is provided on an upper part of the cross-flow fan body and is connected to the rotating shaft of the cross-flow fan body by an upper part of the cross-flow fan body, the motor shaft is connected to the transmission structure and provides the cross-flow fan main body with power to rotate it; the air supply unit mounting part on the base comprises a pivot structure, and the pivot structure is configured to be movably connected to the downward-rotating shaft in cooperation with the downward-rotating shaft.
 5. The desktop cooling fan according to claim 4, wherein the pivot structure comprises a bearing structure or a rotating groove structure: the bearing structure comprises a bearing having an outer ring and a bearing located on the inner side of the outer ring and capable of rotating around a central shaft relative to the outer ring, the downward-rotating shaft protruding below the cross-flow fan main body is connected to the inner ring, and the outer ring is connected to the base; the rotating groove structure comprises a rotating groove which is recessed toward the base corresponding to the downward-rotating shaft and a rotating groove carrier which forms the rotating groove, the rotating groove carrier is located at the air supply unit mounting part of the base, and the downward-rotating shaft protruding below the cross-flow fan main body is at least movably mounted to the rotating groove at the lower end thereof.
 6. The desktop cooling fan according to claim 5, wherein the refrigerant unit comprises a container for containing an internal cavity of the refrigerant, and the container has at least a liquid outlet at the bottom part thereof communicated with the internal cavity of the container; the base also has at least a liquid receiving chamber in the refrigerant unit mounting part, and the liquid receiving chamber has a liquid receiving port corresponding to the liquid outlet.
 7. The desktop cooling fan according to claim 6, wherein the liquid outlet of the container is further provided with a one-way valve, and the one-way valve limits the refrigerant in the container in the operating state flowing from the liquid outlet to a liquid receiving port.
 8. The desktop cooling fan according to claim 7, wherein the one-way valve comprises an inner seal, a T-shaped member, and a return spring, the T-shaped member comprises a connecting rod and a limiting member I formed at one end of the connecting rod, the connecting rod of the T-shaped member is penetratingly connected to the liquid outlet, and the limiting member I and the inner seal are placed at both sides of the liquid outlet, respectively the return spring is sleeved on a part of the connecting rod located outside the liquid outlet, the size of the limiting member I is larger than the inner diameter of the return spring and limits the return spring to the connecting rod, and the return spring on the one-way valve is always in a compressed state; the inner seal is limited to the other end of the connecting rod, and the inner seal forms a seal on the liquid outlet when the inside of the container is attached to the liquid outlet.
 9. The desktop cooling fan according to claim 8, wherein the refrigerant unit mounting part of the base is further provided with a top pressing member, and the top pressing member is provided corresponding to one end of the connecting rod of the one-way valve so that when in an operating state, the upper end of the top pressing member abuts against the one end of the connecting rod and compresses the return spring to remove the inner seal from the liquid outlet.
 10. The desktop cooling fan according to claim 9, wherein the top pressing member is of a long and straight type as a whole, and the lower end of the top pressing member is connected to the lower liquid storage tank below the liquid receiving port.
 11. The desktop cooling fan according to claim 3, wherein the housing of the cover unit has at least an opening on one side of the front panel, the base is located at the lower part of the housing, and the housing and the bottom form a space for accommodating the cooling unit, and/or the air supply unit and/or the refrigerant unit: the cooling unit is provided to the cooling unit mounting part; the air supply unit is provided to the air supply unit mounting part; the refrigerant unit is provided to the refrigerant unit mounting part.
 12. The desktop cooling fan according to claim 11, wherein the housing of the cover unit further has a limiting position, the container of the refrigerant unit further has a limiting part, the limiting part and the limiting position cooperate with each other, and the container is limited to the housing by cooperation between the limiting part and the limiting position.
 13. The desktop cooling fan according to claim 12, wherein the base is located at the lower part of the housing, and the housing and the bottom form a space for accommodating the cooling unit and/or the air supply unit, the limiting position is formed on the outer wall of the housing, the container is provided outside the housing through the limitation of the limiting position and the limiting part on the outer wall, the housing is provided with a penetrating housing corresponding to the top pressing member and a limiting port which cooperates with the liquid outlet and the liquid receiving port, and when the one-way valve on the housing is in an operating state through the limiting port, one end of the connecting rod abuts against the upper end of the top pressing member and compresses the return spring to remove the inner seal from the liquid outlet.
 14. The desktop cooling fan according to claim 13, wherein the limiting position formed on the outer wall of the housing comprises a sliding rail I protruding toward the outside of the housing or a sliding groove I recessed toward the inside of the housing, and the limiting part on the container is formed on the outer wall of the container and comprises a sliding groove II which cooperates with the above sliding rail I or a sliding rail II that cooperates with the above sliding groove I.
 15. The desktop cooling fan according to claim 3, wherein the base further comprises a partition structure for separating the upper part of the base into a water channel region and an air channel region, the partition structure is formed on the upper part of the base and protrudes outward from the base to the upper part thereof, and a tight water-proof structure is formed at the connection between the partition structure and the base; the air channel region is formed with at least an air supply unit mounting part, and the liquid channel region is formed with at least a cooling unit mounting part.
 16. The desktop cooling fan according to claim 3, wherein the base unit further comprises an edge plate structure at least on the upper part of an edge position of the liquid channel region and protruding outward from the base to the upper part thereof, the edge plate structure and the partition structure form a closed structure around the liquid channel region, and the closed structure is a cavity at least partially closed at the part adjacent to the base.
 17. The desktop cooling fan according to claim 3, wherein a control key and a controller matched with the control key are further provided on the front panel, and the controller comprises a PCB control circuit, a control switch and a PLC, wherein the control switch is matched with the control key and provided on the PCB control circuit, and the control switch is connected with the PLC instruction.
 18. (canceled)
 19. The desktop cooling fan according to claim 3, wherein the wet curtain frame is further provided with a reflux pool, the reflux pool is provided with a reflux device, a reflux limiting device is further provided on the liquid storage box cover of the lower liquid storage box, and the reflux limiting device is connected with the reflux device in a matching manner.
 20. The desktop cooling fan according to claim 3, wherein the reflux limiting device is a one-way valve or an electromagnetic valve, and the one-way valve or the electromagnetic valve is used for limiting the refrigerant medium to flow out of the lower liquid storage tank from the liquid receiving port under the triggering condition.
 21. The desktop cooling fan according to claim 3, wherein the front panel unit further comprises a USB device, wherein the USB device comprises a USB interface and a power supply device for supplying power to the USB interface, and the USB interface is provided on the front panel.
 22. (canceled) 